Biosphere
As the connecting bridge between two vast land masses the Panamanian biosphere is filled with overlapping fauna and flora from both North and South America. There are, for example, over 500 species of birds in the isthmus area. The tropical climate also encourages a myriad of large and brightly coloured species: insects, snakes, birds, fish and reptiles. Divided along its length by a mountain range, the isthmus's weather is generally wet on the Atlantic (Caribbean) side but has a clearer division into wet and dry seasons on the Pacific side.
Read more about this topic: Isthmus Of Panama